The confidential computation protocol of matrix QR decomposition with two parties

• Published in: Energy procedia Vol. 13; pp. 3065 - 3071
• Main Authors: Liu, Zhen, Pan, Feng, Yang, Xiao-Yuan
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 2011
• Subjects: data perturbation assumption; matrix decomposition; oblivious transfer protocol; QR decomposition; secure multi-party computation; matrix decomposition; data perturbation assumption; oblivious transfer protocol; secure multi-party computation; QR decomposition
• ISSN: 1876-6102
• DOI: 10.1016/j.egypro.2011.11.444

We analyze the design method of the reference [8] who construct a the confidential computation protocol of matrix triangular decomposition with two parties, and find that it can not realized the confidential computation protocol of matrix QR decomposition with two parties. Using a new decomposition structure, the data perturbation assumption and oblivious transfer protocol, we skillfully constructed a confidential computation protocol of matrix QR decomposition with two parties, and proved it's the correctness and confidentiality. The efficiency of this protocol is as high as the literature [8] because we don’t using the time-consuming modular exponentiation computation.